The dynamics of plant populations are often limited by the early stages in their life cycles. However, information regarding seed bank and how these may influence whole cycle species is remarkably scarce or not considered explicitly. This lack knowledge due mainly to challenges quantifying vital rates. Studies arid land have historically been focused on drivers sporadic recruitment. little atte...

The salinity tolerance of golden barrel cactus (Echinocactus grusonii), ocotillo (Fouquieria splendens), saguaro cactus (Carnegiea gigantea), and Gentry’s agave (Agave parryi truncata) was tested. Plants were irrigated with a solution of EC 0.6, 5.0, 10.0, and 15.0 dS/m. Duration of treatments were 18 weeks for saguaro and 26 weeks for the other three species. In general, fresh weight, dry weig...

A floristic survey of the Cactaceae family was carried out in municipality Santa Maria, Brazil, which is localized central region Rio Grande do Sul state. The study conducted between August 2017 and November 2018, during time 14 species were recorded. Five are on endangered list Sul. threatened Echinopsis oxygona (Link) Zucc. Ex. Pfeiff. Otto, Parodia horstii (F. Ritter) N.P. Taylor, glaucina R...

The yeast species found in necrotic stems of three columnar cacti (Pilosocereus machrisii, Pilosocereus vilaboensis, and Praecereus euchlorus) at eight localities in Brazil were described and a similarity analysis using Sorensen distances was used to compare the composition of yeast species at these localities. Of 56 necrotic cactus stems sampled, 32 produced yeast colonies. Ten species of yeas...

Drosophila mettleri is found in deserts of North America breeding in soil soaked by the juices of necrotic cacti. Saguaro (Carnegiea gigantea) and cardón (Pachycereus pringlei) are the usual host cacti in Mexico and Arizona, while prickly pear (Opuntia spp.) is used by an isolated population on Santa Catalina Island off the southern California Coast. Populations of D. mettleri show significant ...

In modern CMOS technologies, power consumption is becoming a significant challenge for the integrated circuits industry. Accurate estimation of power dissipation is very important during micro-architectural design of every computational structure. This work presents the methodology we intent to use in future investigations regarding power consumption of the SARC architecture. SARC project is ta...

Abstract Many chemical indices have been invented in theoretical chemistry, such as Wiener index, Merrifield-Simmons index, Hosoya index, spectral radius and Randić index, etc. The extremal trees and unicyclic graphs for these chemical indices are interested in existing literature. Let G be a molecular graph (called a cacti), which all of blocks of G are either edges or cycles. Denote G (n, r) ...

Cochineal is the name of both crimson or carmine dye and the cochineal insect (Dactylopius coccus), a scale insect from which the dye is derived. There are other species in the genus Dactylopius which can be used to produce cochineal extract, but they are extremely difficult to distinguish from D. coccus, even for expert taxonomists, and the latter scientific name (and the use of the term "coch...